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CVE-2014-4656

17
FAUCET Score

CVE-2014-4656 describes multiple integer overflows in the ALSA control implementation within the Linux kernel, specifically affecting versions prior to 3.15.2. This vulnerability allows local users to trigger a denial of service by exploiting /dev/snd/controlCX access. With a CVSS score of 4.6, it is a low-severity vulnerability requiring local access and low attack complexity, potentially leading to a denial of service, and some impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.15.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
10CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.6CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_eus:6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 76th percentile among its peer group of 3,049 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-504.8.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-123.13.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.10.33-rt32.45.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2014-4656Moderate

Kernel: ALSA: control: integer overflow in id.index & id.numid

Jun 18, 2014

References

git.kernel.org
git.kernel.org
lists.opensuse.org / opensuse-security-announce/2015-04/msg00020.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2014-1083.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-0087.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/59434
Third Party Advisory
secunia.com / advisories/59777
Third Party Advisory
secunia.com / advisories/60545
Third Party Advisory
secunia.com / advisories/60564
Third Party Advisory
github.com / torvalds/linux/commit/883a1d49f0d77d30012f114b2e19fc141beb3e8e
PatchThird Party Advisory
github.com / torvalds/linux/commit/ac902c112d90a89e59916f751c2745f4dbdbb4bd
PatchThird Party Advisory
source.android.com / security/bulletin/2017-04-01
Third Party Advisory
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.15.2
Release NotesVendor Advisory
openwall.com / lists/oss-security/2014/06/26/6
Mailing ListThird Party Advisory
securitytracker.com / id/1038201
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2334-1
Third Party Advisory
ubuntu.com / usn/USN-2335-1
Third Party Advisory